20493301 has 4 divisors (see below), whose sum is σ = 21047212. Its totient is φ = 19939392.

The previous prime is 20493293. The next prime is 20493323. The reversal of 20493301 is 10339402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11553201 + 8940100 = 3399^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 20493301 - 2³ = 20493293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276900 + ... + 276973.

It is an arithmetic number, because the mean of its divisors is an integer number (5261803).

Almost surely, 2^20493301 is an apocalyptic number.

It is an amenable number.

20493301 is a deficient number, since it is larger than the sum of its proper divisors (553911).

20493301 is an equidigital number, since it uses as much as digits as its factorization.

20493301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553910.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20493301 is about 4526.9527278292. The cubic root of 20493301 is about 273.6553688328.

The spelling of 20493301 in words is "twenty million, four hundred ninety-three thousand, three hundred one".